Ball-rolling machine.



F. E. CANDA.

BALL ROLLING MACHINE. MPucmou mio 1m11.191s.

Iutonted Muy 15, 1917.

2 SHEETS-SHEET I.

y E Y lnuenfo/i .F. E. CANDA.

BALL ROLLING MACHINE.

f APPLICATION FILED JAN. Il. I9I6. 1,225,765. Patented May15,1917. I

2 suns-sneer z.

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35 spaced "fromthe just'able set screws' 18, sothatthe'angle andf finishing die 16 ehviates this olruetnn; and that die 'may `be set to give only' such 'very slight; reduction as is necessary to ",insu'ri'fA I ast that finishing 5 die; theforinati'on.of' a rib such as referred 1 142 Itwill'be apparent that by means of --the supportingscrew's 14* and the thrust screws 14k aA c :onsiderable` adjustment of the reducing die' 114 withrespect'to --the vdrum 0r roll 1 may be obtained e., the angle of the reducing die with reference to the roll may be varied considerably, also the distance lbetween the reducin be.' varied'eonsiderab y.-

I -It important that the-reducing die or Vbreast l1 shall bc heldivithits gron'esiinl precise registry with the grooves' of 4the roll. Therefore 'certain of the spokeslth of l'ioltS'l carry, at their inner 'ends,' rubbing' shoes'l" 'adjusted to bear lightly .yet firmly against the sides ofthe roll- 1. Alsog'these spokes 14 carry set screws 14 wherebyfthe.

the reducing die 11 may supporting them are 'spaced' apart from thel set screws 14' a' sufiicient' distance, radially, to `permit such projection-Lof the end por- 30. tio/n slotf the rods from pfhichhe balls are 16 designates asocalled ifin'ishing die l0- cated at' the exit end of the're di1cng'die or 4 breas'tflL and supported by .bolts f1.7 and distance of this finishing die 'with 'respect to the roll-1 -may be adpisted independent of the adjustment of the reducing die 11. 1 A (D ha ve' found this "separate finishing die va' ver)Y important -feature o f the machine.' rI he main 'reducing die 11 is necessarily set, 'with respect-to the `roll 1, so as to. cause very'eonsiderabl'e reductionofthe st ocki-in pass-ing (5 between that roll and die; .and it is practicallynecessay that the inneror working r surface of this die 1 1 shall be a true. ein-ref either a -truesegment of a circle or a' true segment of a spiral which may be generated ehange'the curvature of tliisinainredux-ing die l1, nearvits exit' fen'd. to'fprov-ide for less reduction' during the' last 'portion 4of the travel of the inateral throng i'tl'ie niachineg,

56 yet unless'provision be iliade' for very 'little rednction' only' during the last-portion ofthe 'travol of the"nn|terial through the machine, that material.' fas'it emerges, will liavearprw nonneed -ri-b, in a plane-- parallel to't-he 'axis rota-tipa'. The separately adjustable feeil'ingof. the n iateria'l die and the .roll may'.

' by the rolling operation, so that .the ballsA Atime to'tin'ie. vThe finishing dieshould have forcing them into the smce rame member 111 by a'd-f' to on'the 'material passingl thi'ou 'h the machine is thereby' obiiatedand bav ls of 'very 4 perfect contour arefproducd.

The ribs between the grooves of" this finishingr die may also be `of such height andof such sharpness as will cause them to cut, .or atleast to' reduce tofvery small dimensions; the neck vtormfed between4 adjacent balls formed willbe vseparated from one another-'75 as theyy leave. the'ni'achine. This inishing' 'v die, being a relatively small object, is readily removed and 'its'grooves corrected in form, and theribfs sharpened ifv necessary, from 80 a length, with reference to the vlirfectio'n'ofV4 progress of the material through the-machine, somewhat greater than the circumferenti'al'length of the finished ball.

'. 'It'lis vervimportant in a machine of .this

. 85 vsort'v that the blanks from whichftlle balls 4are to he formed .shall'be-.introduced between the reducing die 11 and the roll 1 in a direction exactly parallel to the axis of rotation. Furthermore, since the blanks. 'at first lnovenl )iva'rdit is' necessary that means be p rovlded for lifti'n vthem 'and etween the 'roll and reducing die. Fherefore I have provided a" blank-feeding device'conssting 95 of a. shelf 1 8 pivoted atv 19 to the' frame vof.' the' machine and arranged t'be elevated when desired by means of a rod f20 connectvi n'g"said 'shelf '1'8 to a'piv'oted pedal21.

In introducing blanks-into' the' machine a `100 blank is placed upon this shelfj 18 and pery initted to 'roll' d own" until'it touches'the-s'urface of the roll-1;.and then, by-actiation of the pedal, vthe 'blankjis raised'an'd forced il'it'o the space between the 'roll-'1 and divins 11.1' In -Figa' 2 this-shelf 18.s shown-'in elevated position.

C nnetiines the balls'tend to clin-slightly tol the lsui-'face o'f the roll 1;V therefore 'a toothed stripper 22" is provided as shownguo particularly in Figs. 2 -z'ind 6; tlie"tleeth of groovesol" the roll 1. and'serving'to strip the balls, if necessary. from that r'oll, 'where-A upon the balls roll dowi a shelf-24. '115 An important 'featureof 'my 'invemon is the' sertion'al profile ofv thevgrooves -of' the froll a'nd'breast. .In the production of balls b v means o'f grunted 'dies ithas beencular or approximately in cross sim-tion;

f the resultant balls vwill be liattenedweryg' stripper .22 and in part true spherev which lthe, balls produced in such grooves approximate very closely. It will be observed that the grooves 10 'are approximately lof circular cross-section near .their apices, while near the bases of theV j grooves` (i. e., the tops of the ribs) .the walls of said grooves are approximately straight vand approximutelytangcnt to thecircle 25,

'. but atquite n noticeable angle to. the axis of rotation.

26 in Fig. 2 designates a' tempering tank into which the balls drop from the shelf 24. It is'desirable to carry away from the machine the end portions of-the rods which .are cut pif by the action of the outside ribs "of the dis. To this end I providev troughs 27 shown in dotted lines, in Figs. l and 2, and sliop'n-in cross section in Fig. 3, and in l plan in Fig. 6. These troughs are angleirons located, in -the spaces between the sides of the drum and thesupports 1.4, and sup ported 4partly by the su portv 28 for the Iby yokes 29 em-l I A.bracing the metal 'spokes of the supports chine. lK It is convenient ,to carry these troughs 27 40 14". VAt the lowerends of these troughs 2,7, their fianges 30 are bent' 'outwardly as shown particularly in Fig.' 6, so as Itoguide-the cropped ends 'of the rods away from the mawell back, and .preferably back ofv thecenter of the machine, because, in some cases, .the reducing die 11 is shaped and adjustedl so that the cutting ofthe bars to or near the objectsof' rotation, comprising va base, 4a

center isdone in the early part ofthe roll ying operation; and ofcourse injsiich lcase the ends of the bars may be cut o iearly ingthe progress ofjthose bars lthrough the .machine j groove'd -roll mounted "for rotation withrespect to-said base, said base ,having pedestals two side memberssonooibstersideiml 'onppositesides of. said'rol1,a frame member spanning the'roll andsecureda to said pedestals, and a grooved breast located lin proximity'to the roll and with itsvgroovesl 1n. re -istry Iwith theoo ve's of ,the roll,- 1aid least-supported' y saidf. frame mem- ,er i

2. A machinel for forming balls and other objects of rotationg'f com rising-,ja4 groved roll and a correspondiny grocved. breast, and a suppitj for :Qaida-breast 'A 4rolland an intermediate member spanning 'the roll andlirmly secured to said sideV menir bers and also connected vto the breast to sup'- portthe same.

A machine foi-forming balls and 'other 'objects ofrotation, comprising a grooved roll' and aicorrespondingly. groovcd breast located'in proximityto the roll, a base, 'a support for said breast rigidly securedl to 'sind base, and means, carried by said'su port-` and en agingthesidcsof said roll, andarrange to prevent lateralV motion44 of said roll.

objects ofrotation, comprising 'grooved roll and a correspondingly grooved breast.

5. A machine for forming balls` and other objects of rotation, comprismgtwo grooved die members, one of-whichlsl movable with' Vrespect to the other, .the grooves of such die .members registering respectively, and the space between said die members growing pro-l gressively narrower in the directionA oJm'otion of one oi said members with. relation 4.' A machine for forming balls and othersa l to the other, andmeans for introducing'ma 'terial to be acted upon between saiddie* v memberscomprising a movable'support for4 -suchmaterial to be actedupon, and means for moving such support toward thegen'- tra-nce. to the space betweenjsaid. die mem-' bers.

6. A ball forming die lcomprising a -grooved die member-adapted for coaction' with a correspondingly,` ooved die member i and for the rolling thi-ou h .its groove of an object to be formedinto .a ball by the action' of such groove, -the""saigdgroove beingof approximately circular .curvature 'at dnd 'near its apex andthence 'broadeningqou-t-- ward-to vbeyond true circular curvaturetoward the baseof the groove( fr. A machine fer, formingina-1s nel @thef- @obJectsfof rotation, comprislng 'tworooved- 115 die. members, one of which is movab `e '-with lrespectto the other, the grooves of such die members ,registering respectively, and.; the

vspace between. xs a.id' die members growing progressively'V narrower in the direction of motion of-one ofgsaid members with relation to the other', "said diemelnbersbein -to receive betweenthemebar annir -actlon to formwthatfbar into a. pluralit of balls and to out `off 4thelextrexneends o 4the so cut of andto car "thenraway i 8 Afmachine f orfi" fob'ects olf rotation, `tc

ro l

and-a; cprreponding y grooved breast )inslag aV grooved ,12s, bars, and means adaptedgto receive-.the-ends palle and other 'loceted in proximity'to the roll, the grooves of said roll and 'breast registeringend the'- r space between said roll and breast growing` )ro ressvel f narrower ,in the direction-of rotation of the ro1l,said roll and breast be- `ing adapted-to receive between them ,a bar and by their action to form rthat bar into u plurali-ty of' balls 'and to cut o the ex treme ends of the bars and means Aadapted thelnaway. Y

In testimony whereof I have signed this c specification in the presence of two subscrib-A ing witnesses. i i

FERDINAND E. CANDA. Witnesses:

' H.`M. MARBLE,

PAUL H. FnANxE.

I to receive the ends so cut 01T to carry 10 

